#!/usr/bin/env python2
# -*- coding: utf-8 -*-
"""
Created on Fri Nov 17 11:16:14 2017

@author: lz
"""

import os
os.chdir('/media/lz/D/lz_FCN/FCN.tensorflow-master/logs/images')

import scipy.misc as misc
I=misc.imread('gt_3.png')
misc.imshow(I)

uI=np.unique(I)